Liquid nozzle and sprayer



H. MURPHY.

LIQUID NOZZLE AND SPRAYER.

APPLICATION FILED JULY 14;,1919.

Patented June 1, 1920.

U N E r HARRY MURPHY, 0F MUNCIE, INDIANA.

LIQUID NOZZLE AND SPRAYER.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed July 14, 1919. Serial No. 310,772.

To all whom it may concern:

Be it known that I, HARRY MURPHY, a citizen of the UnitedStates of America, and resident of Muncie, in the county of Delaware and State of Indiana, have invented certain new and useful Improvements in Liquid Nozzles and Sprayers, of which the following-is a specification.

This invention relates to nozzles for feeding fuel to furnaces and the like, although it is of utility as a spraying nozzle or in other connections of similar employment and if placed inside of a pipe, it will distribute paint or whitewash or it will spray water for sprinkling lawns, spraying trees and the like.

An object of this invention is to produce a combined fuel and air delivering means whereby the oil or fuel is finely divided when delivered to the combustion chamber of a furnace and the said device may be employed in connection with high or low pressure and will work equally well for delivering gas to a furnace.

The said device may also be used as a burner and it has provision for adjusting the nozzle thereof with relation to the fire zone so that the nozzle may be drawn back from the intense heat.

A further object of this invention is to produce a spraying device of the character indicated having means for cleaning a conduit for preventing clogging, thereby in suring uniform delivery of fuel.

A still further object of this invention is to provide a mixing chamber for the fuel and air, provision being made whereby there may be a continuance of the delivery of the fuel even though the nozzle is advanced or retracted with respect to the mixing chamber. N

WVith the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in which Figure 1 illustrates a sectional view of a device embodying the invention;

Fig. 2 illustrates an end view on an enlarged scale; and

Fig. 3 illustrates a sectional view on the line corresponding with the line 3-3 of Fig. 1.

In these drawings 5 denotes a mixing chamber having its external wall 6 threaded so that it may be anchored in a head or casing. The said chamber 5 has a tubular extension 7, the end of said extension being externally threaded as at 8 and the mixing chamber has a head 9 with an inwardly extending hollow boss 10 forming a guide for the fuel conducting tube 11. The wall of the boss 10 is threaded to engage a packing nut 12 which is adjustable to press on the packing 13 so that a tight joint may be formed between the tube 11 and the head of the mixing chamber for, as stated, the tube 11 is slidable with relation to the mixing chamber and in the extension 7 of said mixing chamber, for a purpose to be presently explained.

The outer end of the tube 11 is threaded as at 14 to receive an apertured cap 15 through which the stem 16 is slidable, there being a packing joint 17 between the cap and the tube through which the said rod is slidable. v The rod is of'less diameter than the bore of the tube so that there is a clearance therein through which the fuel may pass and the rod may be manipulated without shutting off the fiow of fluid except temporarily when the cleaning pin 18 on the inner end of the rod enters the orifice 19 in the nozzle 20 when the said orifice is being cleaned. Ordinarily, the cleaning rod can be pulled well out to the end of the tube 11 so that there will be no obstruction of the tube normally.

The tube 11 has an aperture 20 through which fuel finds its way to the tube from the mixing chamber and from the extension of the mixing chamber, it being .seen in the drawing that there is a channel or space 21 between the extension of the mixing chamber and the said tube so that fluid may find its way to the tube even though the tube is forced inwardly to deliver fuel to an advanced position in the combustion chamber.

The head 9 of the mixing chamber has a threaded aperture 22 and a threaded aperture 23 in which pipe couplings 24 and 25 are threaded respectively. The pipe couplings may be employed for the connection of pipes 26 and 27 respectively which may lead to a source of supply, one being preferably connected to a source of supply for air and the other connected to a source of supply of fuel which may be oil or gas.

The inner Wall of the extension 7 has an annular shoulder 28 which forms an abutment for a packing 29 which packing is held in place by the ring nut 30 engaging the threads at 8 on the extension 7 and serving to create a tight joint between the sliding 1o tube and the extension of the mixing chamber.

The nozzle 20 has a nipple 31 coupled to I the tube 11 by a threaded coupling 32 and the said coupling 82 limits the outward movement of the tube 11 when it abuts the ring nut 30.

The nozzle is preferably provided with studs 33 which radiate from the inner wall of the'nozzle and converge to the center and 23 these studs are relied upon as baffles for pin 35 just in advance of the studs and the mouth of the nozzle is flared and provided with longitudinally extending slots 36 to permit the escape of fuel laterally of the nozzle after it has impinged the said ball.

I claim In a nozzle of the character described, a mixing chamber having a head, couplings threaded in the head and communicating with the interior thereof, an extension communicating with the mixing chamber, a tube sli'dable through the head and through the extension of the mixing chamber, said tube being spaced from the wall of the extension to form a passage, said tube having an aperture therein for receiving fluid from the mixing chamber or extension, a nozzle connected to the tube and communicating therewith, the said nozzle having an orifice therein, studs in the nozzle past which the fuel is forced, a ball rotatably mounted in advance of the said studs and the said nozzle having longitudinally disposed slots through which fuel impinging the ball may pass, a cleaning rod in the tube and having a cleaning point adapted to enter the orifice of the nozzle, and a packing joint between the saidrod and the said tube.

HARRY MURPH 

